Seiko Cal. 4487 - 717

The Seiko 4487-717 represents an important milestone in Seiko's 1977 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-b2ae4d949604]

Also known as: World Timer, Sea Horse

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1977

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